From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,6538aab6b5cbb022 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-08-31 06:00:24 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!bloom-beacon.mit.edu!news-out.cwix.com!pullfeed!newsfeed.cwix.com!newsfeed.stueberl.de!newspeer1-gui.server.ntli.net!ntli.net!newsfep4-glfd.server.ntli.net.POSTED!53ab2750!not-for-mail From: "Dr. Adrian Wrigley" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030624 X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Annex E, GLADE and fault-tolerance References: <%mK2b.4892$L15.72@newsfep4-winn.server.ntli.net> In-Reply-To: <%mK2b.4892$L15.72@newsfep4-winn.server.ntli.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Message-ID: Date: Sun, 31 Aug 2003 14:00:21 +0100 NNTP-Posting-Host: 81.100.88.147 X-Complaints-To: abuse@ntlworld.com X-Trace: newsfep4-glfd.server.ntli.net 1062334823 81.100.88.147 (Sun, 31 Aug 2003 14:00:23 BST) NNTP-Posting-Date: Sun, 31 Aug 2003 14:00:23 BST Organization: ntl Cablemodem News Service Xref: archiver1.google.com comp.lang.ada:42003 Date: 2003-08-31T14:00:21+01:00 List-Id: Francisco Javier Loma Daza wrote: > Can you make a trivial passive partition on which install the boot > server? as this partition will not contains any code, can be assumed > that it will not die unexpectly, but if you don't feel good, you can I don't think the bootserver can be passive - doesn't it run code to allocate partitionIDs and control termination? > make another (the real server for example) a boot mirror with the > boot_mirror command line option. The real server can be another > partition that can be terminated alone, leaving the passive boot > partition running. I have adopted a tactic like this. The boot server runs continuously, and since it does very little, is robust. All other partitions can be restarted. The real server is in a separate partition, that will be restarted, if necessary (for software upgrades, or program error). The question of boot_mirrors isn't very important in my application, where only one mahine is involved at present. I have been unable to get boot_mirror to work for me - maybe I don't understand it properly. Unfortunately, separating the boot server and the real server hits a serious bug, presumably in the PCS. I shall post this separately. > I have no time for test but I hope that helps Thank you for your suggestions. -- Dr. Adrian Wrigley, Cambridge